Built for heavy-duty commercial use, the Square D HDL36045 is a 45A, 3-pole molded case circuit breaker within the PowerPacT H-Frame series. It delivers reliable thermal-magnetic (LI) protection to safeguard critical circuits. Designed for unit mounting, it installs easily into industrial control panels and acts as a seamless replacement for older FAL36045 units. With an interrupt rating of 18kAIC at 480VAC, the current-limiting design and Visi-Trip indicator enhance system safety.
HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed
Product FAQs
7 answers
What is the recommended lug torque for the HDL36045 circuit breaker?
For the standard AL150HD lugs, the tightening torque is 44.3 lb-in for 14 to 10 AWG wire, and 123.9 lb-in for 8 to 3/0 AWG wire.
Can the Square D HDL36045 be reverse fed?
Yes. Standard unit-mount PowerPacT H-frame thermal-magnetic circuit breakers feature factory-sealed trip units and are suitable for reverse feeding.
What does the D in the HDL36045 catalog number indicate?
The D designates the interrupting rating tier within the PowerPacT H-frame series, which provides 25kA at 240VAC, 18kA at 480VAC, and 14kA at 600VAC.
Are internal accessories field-installable on the HDL36045?
Yes. PowerPacT H-frame circuit breakers accept field-installable internal accessories, such as shunt trips, auxiliary switches, and undervoltage releases. These mount in dedicated compartments behind the front cover.
Which lug kit comes standard on this breaker?
The HDL36045 comes standard with the AL150HD lug kit, which accepts 14 to 3/0 AWG aluminum or copper wire.
Is the HDL36045 a replacement for legacy FAL36045 breakers?
Yes, the PowerPacT H-frame series is the current replacement for legacy Square D F-frame breakers, including the FAL36045. Note that mounting dimensions differ, so retrofit hardware may be required depending on the enclosure.
How does the breaker indicate a tripped condition?
PowerPacT H-frame breakers feature a center-tripped handle position and a Visi-Trip indicator, providing clear visual confirmation when the breaker has opened due to an overcurrent fault.
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Review summary
Customers rate this product 4.0 out of 5 based on 1 review.